If happen that your cluster is degraded, for example, two nodes dead in PSS configuration, and the last node is in status Secondary. Then we can force move this node to Primary Remove old nodes maybe change the priority on some members And force apply changes on Secondary
After Kafka 2.8
After some time of work Zookeeper writes a huge transaction log and adding any new event in the log makes fsync to FS very long Logs: To prevent size growth we can add two options to Zookeeper In config file: Or via Env variables when running in Docker This options will keep only last 7… Читати далі »
When you try to update/pull or get a diff for the Git repository, you can get a warning: It is because the new version of Git forbidden to run git commands in a directory that is not owned by the current user ( CVE-2022-24765 ) To fix, you need to change permission for the directory… Читати далі »
In case you forgot the root password or can’t login to the CentOS, we can start OS by editing kernel boot options in Grub When the system is booting press any key (left, right, top, down) on Grub screen Select the kernel you need to run and press ‘e’ to open the editor
When building debezium-connect image on Gitlab runners had error After running all commands in Container found the problem Bug on Fedora issue tracker https://bugzilla.redhat.com/show_bug.cgi?id=2019901 Fix by running a container with security options or add config to Runner
If it’s not enough and the internal queue grows very fast – change the Wiredtiger limit of concurrent transaction
The newer version of the DKMS Nvidia driver won’t install on Ubuntu 22.04. From logs : Error “unrecognized command-line option ‘-ftrivial-auto-var-init=zero’ looks like we need a newer version of GCC. Firstly try to install deps
Use an app named ‘safe’ URL: https://github.com/starkandwayne/safe/tree/v1.6.1
Sometimes I need to have separate partitions on VPS in Hetzner. The simplest way to create a custom disk structure – use Cloud-init script With commands: In this example, we have 10Gb for / and empty disk /dev/sdb